Patents by Inventor Carl Cederholm

Carl Cederholm has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4448413
    Abstract: An amusement game device includes a labyrinth structure and a pair of elongated resiliently flexible substantially coextensive strips which are interconnected at one end thereof. The device is operable to effect the selective independent longitudinal advancement and retraction of each of the strips to cause the interconnected ends thereof to be selectively turned and thereby guided through the labyrinth structure. Game play is effected by advancing the strips through the labyrinth structure to engage and manipulate or retrieve game elements positioned therein through the use of a magnet or the like attached to the interconnected strip ends.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: May 15, 1984
    Assignee: David Weindel
    Inventors: David Weindel, Carl Cederholm
  • Patent number: 4067138
    Abstract: A walking doll having a hollow body on which arms and legs are mounted, the legs being mounted for pivotal movement to effect a walking action, a pneumatically operated assembly being located within said body and interconnected to the legs for producing the pivotal movement thereof, the pneumatically operated assembly including independently operated bellows units that communicate with manually operated members that define the hands of the doll and that are responsive to alternate pressure exerted thereon for producing the walking action of the legs.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: January 10, 1978
    Assignee: Hasbro Development Corporation
    Inventors: Carl Cederholm, Robert H. Hudson
  • Patent number: D252761
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: August 28, 1979
    Assignee: Hasbro Industries, Inc.
    Inventors: Steven R. D'Aguanno, Carl Cederholm, Fred D. Eddins, Charles Muenchinger
  • Patent number: D252762
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: August 28, 1979
    Assignee: Hasbro Industries, Inc.
    Inventors: Richard M. Rossi, Carl Cederholm, Steven R. D'Aguanno, Charles Muenchinger